1J8Y

Signal Recognition Particle conserved GTPase domain from A. ambivalens T112A mutant


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.227 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The crystal structure of the conserved GTPase of SRP54 from the archaeon Acidianus ambivalens and its comparison with related structures suggests a model for the SRP-SRP receptor complex.

Montoya, G.Kaat, K.Moll, R.Schafer, G.Sinning, I.

(2000) Structure Fold.Des. 8: 515-525

  • Primary Citation of Related Structures:  1J8M
  • Also Cited By: 3KL4

  • PubMed Abstract: 
  • Protein targeting to the endoplasmic reticulum in eukaryotes and to the cell membrane in prokaryotes is mediated by the signal recognition particle (SRP) and its receptor (SR). Both contain conserved GTPase domains in the signal-peptide-binding prote ...

    Protein targeting to the endoplasmic reticulum in eukaryotes and to the cell membrane in prokaryotes is mediated by the signal recognition particle (SRP) and its receptor (SR). Both contain conserved GTPase domains in the signal-peptide-binding proteins (SRP54 and Ffh) and the SR proteins (SRalpha and FtsY). These GTPases are involved in the regulation of protein targeting. Most studies so far have focussed on the SRP machinery of mammals and bacteria, leaving the SRP system of archaea less well understood.


    Related Citations: 
    • Crystallization and Preliminary X-ray Diffraction Studies on the Conserved GTPase Domain of the Signal Recognition Particle from Acidianus ambivalens.
      Montoya, G.,te Kaat, K.,Moll, R.,Schafer, G.,Sinning, I.
      (1999) Acta Crystallogr.,Sect.D 11: 1949


    Organizational Affiliation

    European Molecular Biology Laboratory, Structural Biology Programme, Heidelberg, D-69017, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
SIGNAL RECOGNITION 54 KDA PROTEIN
F
297Acidianus ambivalensGene Names: srp54 (ffh)
Find proteins for P70722 (Acidianus ambivalens)
Go to UniProtKB:  P70722
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.227 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 64.866α = 90.00
b = 128.020β = 90.00
c = 72.040γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-06-13
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance